TM8100/TM8200 Service Manual
Power Supply Fault Finding
169
© Tait Electronics Limited
June 2006
Task 4 —
Check Power-up
Configuration
The radio may be configured for one or more of the following power-up
options:
■
battery power sense
■
auxiliary power sense
■
emergency power sense
■
internal-options power sense
A particular option is implemented by inserting the link mentioned in
. If there is a fault with a power-up option for which the radio is
configured, first confirm that the configuration is correct:
1.
Confirm that the correct link or links have been inserted for the
required power-up options (see
and
). For all
except the battery-power-sense option, also check the radio’s
programming as follows:
2.
Open the
“Programmable I/O”
form.
3.
Under the
“Digital”
tab, scroll to the relevant digital line listed in the
“Pin”
field:
■
internal-options power sense:
IOP GPIO
7
■
auxiliary power sense:
AUX GPI
3
■
emergency power sense:
AUX GPI
2
4.
For the first two lines, confirm that the
“Power Sense (Ignition)”
option
has been selected in the
“Action”
field, and
“High”
or
“Low”
in the
“Active”
field. For the third line, confirm that
“Enter Emergency Mode”
has been
selected.
5.
If the link and programming settings are correct, go to
. If they
are not, rectify the settings and check if the fault has been removed.
If it has, return to
. If it has not, go to
.
Table 7.1
Implementation of the power-up options
Power-up
option
Link to
insert
Factory
default
Activation mechanism
Connector
Battery
power sense
LK1
Link in
Connection of 13.8V supply
Power connector
Auxiliary
power sense
LK2
Link in
AUX GPI
3
line goes high
(If LK1 is in, line floats high;
if LK1 is out, line floats low)
Pin 4 of
auxiliary connector
Emergency
power sense
LK3
Link in
AUX GPI
2
line goes low
Pin 5 of
auxiliary connector
Internal-options
power sense
LK4
Link out
IOP GPIO
7
line goes high
Pin 15 of
internal-options connector
Summary of Contents for TM8235
Page 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 04 Issue 4 June 2006...
Page 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 62: ...62 Description TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 148: ...148 Disassembly and Reassembly TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 162: ...162 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 178: ...178 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 258: ...258 Receiver Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 446: ...446 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
